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Finding the Fourth Proportional to 65,370.96, 90,211.68 and 37,076.40

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Solution

The fourth proportional to 65,370.96, 90,211.68 and 37,076.40 is: 51,165.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,370.96 : 90,211.68 = 37,076.40 : x
  2. Step 2: Convert to fraction form
    65,370.96/90,211.68 = 37,076.40/x
  3. Step 3: Cross multiply
    65,370.96x = 90,211.68 × 37,076.40
  4. Step 4: Simplify right side
    65,370.96x = 3,344,724,332.35
  5. Step 5: Solve for x
    x = 3,344,724,332.35/65,370.96
  6. Step 6: Final answer
    x = 51,165.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.